Locomotive-engine-truck brass



(No Model.)

H. A. BARNES.

LOGOMOTIVB ENGINE TRUCK BRASS.

Patented Dec. 21, 1886.

FIG. 2

TZGZ.

W] T NESSES n. PETER5, Phuln-Lilhogrnpher. Walhlngton. 04 c.

, UNITED STATES PATENT OFFICE.

HARRY A. BARNES, OF STEVENS POINT, \VISCONSIN.

LOCOMOTlVE-ENgGINE-TRUCK BRASS.

SPECIFICATION forming part of Letters Patent No. 354,527, dated December21, 1886.

Application filed July 26, [886. Serial No. 209,081.

To aZZ whom it may concern:

Be it known that I, HARRY A. Bannns, a citizen of the United States,residing at Stevens Point, in the county of Portage and State of\Visconsin, have invented a new and useful Improvement inLocomotive-Engine -Truck Brasses, of which the following is aspecification.

My invention relates to an improved brass, which dilfers from all otherforms of locomotive-engine-truck brasses in the following features, thatwhile in all other forms of brasses the oil is supplied to the top'ofthe journal along the center line of the bearing-surface bymeans ofholes through the top of the brass, thus lubricating the forward half ofthe bearing-surface only, in my invention the oil is suppliedtothejournal at the back edge of the brass before that part of thejournal comes in contact with the brass, and thereby lubricates thewhole bearing-surface.

The oil-holes in brasses now in general use are liable to becomeclogged, and in this way prevent the oil from reaching the journal. Inmy invention the 'oilchannels are so constructed that it is impossiblefor them to become obstructed, and the oil flows freely to the journalat all times. I attain the objects set forth by means of the improvedform of brass illustrated in the accompanying drawings, in which- Figure1 is a plan of the top; Fig. 2, a view of the back edge and Fig. 3, anend view.

Similar letters refer to si milar parts through out the several views.

. A is a recess in the back of the brass. B B

(No model.)

D are lugs cast 011 the brass, which fit into suitable pockets in theengine-truck box, and hold the brass in position. E E indicate thebearing-surface. The dotted lines a a a a show the position of theretaining-grooves for Babbitt or other filling. 1 t

The oil flows from the oil-p0cket in the top of the engine-truck boxinto the recess A, thence through the channels B B over the back edge ofthe brass onto the journal, which revolves in the direction of the arrowand carries sufficient oil on its surface to thoroughly lubricate thewhole bearing-surface E. The channels B B being placed on top of thebrass away from the "wearing-surfaces, and being made in such form thatthe discharge-opening is much wider than the neck, renders it impossiblefor them to become obstructed, and dis tributes the oil throughout abroad surface,

reducing in this way the liability to heating.

I am aware that prior to my invent-ion locomotive-engine-truck brasseshave been made with lugs on them to hold them in position, and alsohaving the bearing side filled with anti-friction nietalf I do not,therefore, claim these features as part of my invention; but

\Vhat I do claim as my invention, and desire to secure by LettersPatent, is

A journal-brass having on its top an oil-recess, A, from which leadchannels B B to and over the back edge of the brass, whereby thelubricant is conveyed to the journal, substantially as described.

H. A. BARNES. Witnesses:

F. S. NIoHoLsoN, F. K. IRWIN.

